I copied this idea from another forum member. Super easy to construct. Bought the Red LEDs and blue from Steve's LEDS per Turbos recommendation, and heat sinks from Turbo. Scratched the mesh up a bit but no mortar, and added a 2x2" seed screen from my dump bucket scrubber. The attached pictures are from 8 days of growth. after 24 hours the screen is already completely covered back up with algae. Scrubber is working like a champ. Last picture is a comparison of the first weeks growth of my DIY vertical compared with a weeks worth of my old Dump buckets style. Almost the same output after week #1!